Question

 I don't understand how the 3rd octet keeps chainging and still has the 255.255.255.0 subnet mask?

Answer Well to begin with, a /22 is not 255.255.255.0, its actually 255.255.252.0. The third octet is the first octet that is not a 255, so we know that its this octet where the subnetting is. 256 - 252... Read More »
http://uk.answers.yahoo.com/question/index?qid=20121130114223AACOCrh


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